Assictor of ohe-half to natiohai



L. CWILLCOX.

PASTRY BAKING MACHINE.

APPLICATION FILED MAR. 20, I9I6. Y l ,S05/183, Y Patented Muy 27, 1919.

ASHEETSVSHEET I.

latencd May 2T, 1919.

4 SHEETSvY-SHEET 2.

m m. Qc .1. A mw bQ\ QW n MQW DSN. mw @n um Y QN m @din/@55 I.. C. WILLCOX.

PASTRY BAKING MACHINE.

APPLlcATloN FILED MAR. zo, |910.

Patented Mi j 27, 191i),

LA C. WILLCOX.

PASTRY BAKING MACHINE..

APPLICATION FILED MAR.20,1915.

Patonted Muy 27, 1919` 4 SHEETS-SHEET 4 @www Lujn/ess LELAND C. 'WILLCOX, @F DES EIOINES, IOWA, ASSIGNOR OF ONE-HALF 'IO NTIONAIA PIE CRUST COMPANY, F MILWAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN, AND ONE-HLF T0 ALVAH C. WHITE, OF DES MOINES, IOWA.

enterar-tanins Macerata.

essaies.

Specication of Letters Patent. Pwqentgd lillgt pplication filed March 20, 1916. Serial No. @5A-2li.

To all whom t may concern Be it known that I, LEALAND C. WILLCOX, a citizen of the United States, and a resident of Ecs Moines, in the county oi Polk and State of Iowa, have invented a certain new and useful Pastry-Baking Machine, of

which the following is a specification.

T he obj ect of my invention is to provide a pastry balning machine with a plurality of movable ovens and having movable means for cutting dough into desired sizes and shapes and for carrying the portions thus cut to the ovens and depositing them thereon.

A further object is to provide in such a machine means for moving the ovens and for operating them to discharge the baked crusts at the proper time.

Still a further object is to provide'in such a machine a plurality of ovens liaving upper and lower po-rtions, one portion of each oven being movable and having means for hea-ting both portions of each oven, prei-er` ably comprising a burner in or adjacent to each o-ven portion.

My invention consists in the construction, arrangen'ient and combination of the vvarious parts of the pastry baking machine whereby the objects above set forth, and others,`- are attained as hereinafter more fully set forth,

pointed out in my claims and illustrated 1n the accompanying drawings, in which:

Figure 1 shows a top or plan view of the pastry baking machine embodying myinvention.

Fig. 2 shows a. vertical sectional view through said machine.

Fig. 3 sho-ws an enlarged, detailed, sec-- tional view of the parts at the lower end of the shaft which operates the dough cutting and carrying mechanism.

Fig. e shows a vertical, sectional View through one of the ovens and the parts connected therewith.

F ig. 5 shows a horizontal, sectional view taken on the line 5 5 on Fig. i.

Fig. 6 shows an enlarged, detailed View of the mechanism connected with one of the ovens, the oven itselt being shown in vertical section.

Fig. 7 shows a detailed, sec-tional view taken on the line 7 7 of Fig. ti.

Fig. 8 shows a horizontal sectional view takenon the line 8 8 of Fig. 2`

Fig. 9 shows a detailed view of part of the mechanism for tilting the ovens.

Fig. 10 shows a horizontal sectional view taken on the line 10h10y of Fig. 2.

Fig. 11 shows a vertical, sectional View taken on the line 11-11 of F ig. 10, and,

F ig. 12 shows a vertical, sectional view through one oi the air controlling valves.

My improved pastry baking machine oomprises a plurality of ovens adapted to move around a central point. Adjacent to the oven supporting mea-ns are a plurality of devices arranged to move around another central point and adapted to be operated to cut dough into suitable shapes and to pick up the portions so cut and to carry them to and deposit them upon the ovens.

In the accompanying drawings` I have shown in Fig. 2 a supporting stand whichl have indicated by the reference character 10a. Mounted in the support or, stand 102L and extending upwardly therefrom is aheavy upright shaft 11. Above the support 10a rota-tabl mountedl on the'shaft 11 isa sleeve 12 'whici is supported on the stand 1()p4 by ball bearings 13. Near the upper end of the sleeve 12 is a laterally extending annular flange la, having. at its periphery an upwardly extending wall or iiange 15. The

'slve 12 has' a portion 16 which extends tov v position above the liange 111 but does not ex- A tend upwardly as tar as the dang@ or svall15.

Fixed on the shaft 11 above the sleeve portion 16 is a collar 17 having at its lower end a laterally extending web 18. Formed on the upper surf-ace of the web 18 near its periphery and on one side of said web is a cani- 19, the purpose of which will hereinafter be described.

Formed on the lower surface of the web 18 near itsgperiphery is a downwardly eX- tending Hangs 20 provided at a certain point with teeth 21 and at a certain point with a notch 22, thepurpose of which will be hereinatter referred to. y

Above the .collar 17 there is fixed on the shaft 11 another collar 23 having a laterally extending arm 24 provided with vertically arranged and alined bearings 25.

Rotatably mounted on the shaft 11 above the collar 23 is a hub 26 having formed on its lower portion a gear 27,

Formed on the upper portion of the hub 26 is a laterally extending 'annular flange 28,

having at its outer edge a.n.upwardly extending flange or wall 29,'the upper edge of which is provided with gear teeth 30. i l Fixed on the upper end of the shaft 11 is a su port 31 on which it mounted a motor 32 havlng a shaft 33. Mounted in suitable bearings 34 on the support 31 is a shaft 35 on which is a worm gear 36 meshin with worm 37 on the motor shaft 33. n the outer end of vthe shaft -isa pinion 38 in mesh `with the gear teeth 30.

In the bearings 25 is mounted/ an upright shaft 39, on. the upper end of which is a gear 40 in mesh with the gear 27. On the upper portion of the wall or iange 15 are external gear teeth 41 in mesh with a small gear 42 on the lower end of the shaft 39.

Thus it will be seen that when the motor shaft 33 is rotated, rotation will be imparted to the shaft 35 and the pinion 38 thereon. The wall 29, flange 28 and gear 27 will be rotated, thereby imparting rotation to the wall or iange 15 through the medium of the gears 40 and 42 and the shaft 39.

Extending radially outwardly from the lower portion of the wall or flange 16 is a' plurality of supporting arms 43. Mounted on the outer end of each arm 43 is a casting or the like 44.

Adjacent to each casting 44 is a lowel oven member which may in each case comprise a horizontal bar or the like 45, having at its outer end an upwardly extending support 46, upon which rests a lower oven meminiflange 48%' ber which may be of any desired shape, but as shown is shaped like an inverted pie tin,

having allai; bottom 47 and a Haring Outer` wall 48, having at its outer edge a flat horizontal annular shoulder 481 with a sharp outer edge and a downwardly extending flange 49, as shown in Fig. 4. In this.con nection it maybe noted that the oven members may be of any desired shape for the purpose of baking pies or small cups or the like. But said oven members are preferably arranged in inverted position, or in other words, in such a (way as to bake the dough into a crust while holding the pie crust or the like in inverted positlon.

At the inner end of the bar 45 is an upwardly extending tubularmember 46, havin at its upper end alaterally extending tu e or sleeve 47 extending into a suitable opening in the` casting 44.

Spaced inwardly from the flange or wall. 15 on the flange 14 is an upwardly'extend xtending throu h the flanges 48IL `and 15, which form space bearings therefor, is a lurality of radially extending shafts 49a.. Each shaft 49'? at its outer end extends into a suitable opening inl 'the casting 44, as

v811mm in Fig. 4,` and hasits outer end received Within the inner end of the sleeve 47* by a tight joint.

Each casting 44 is provided with a fuel chamber or passage 50 surrounding the end of the shaft 49a. The end of the shaft 49a, received in the fuel passage 5() and the end of the sleeve 47 a, is hollow, being provided with an opening or passage 51. The wall of that portion of the shaft 49a which has the opening or passage 51 is provided with openings 52, whereby communication is afforded between the passage y51 and the fuel opening or passage 50.

The upwardly extending arm 46a is provided with a passage 53 vwhich communicates with the opening in the sleeve 47a. Suitably mounted below the bottom 47 of eachy lower oven member is a suitable burner 54. A tube 55 leads from the passage 53 to the burner 54 of 'each oven.

In this connection it should be noted that the sleeve 47a and the shaft 492L are fixed to each other and are rotatably mounted in the casting 44. It should also be noted that' the member 46 in a sense forms a crank and that the lower oven members are mounted below the longitudinal axis of the shaft 49a.

Suitably mounted preferably 'above the castings 44 is an annular fuel supply tube 56. A branch tube 57 leads from the fuel supply tube 56 to each fuel passage 50.

Extending upwardly from Veach casting 44 is a pair of'uprights 58 preferably arranged in the case of each casting 44 on opposite sides of the sleeve 47 a, as shown in- Figs. 1 and 7.

Slidably mountedl upon both uprights 58 of each pair is an oven supporting bracket 59, capable of vertical reciprocation on the uprights 58. i

Each bracket 59 has an arm 60A extending radially outwardly, as shown in Figs. 1 4 and 6. Each arm 60 is provided near its outer end with a slot 61. Mounted in the- 62 is screwed a nut 64. The sleeve 62 is..

of smaller diameter than the slot'` 61, so that by loosening the nut 64 the sleeve 62 may be given slight adjustment in any direction.

Mounted in the sleeve 62 is an upright rod vor the likev65, having on its upper end a nut 66 and'fsupporting at its lower end the upper oven `nuernber which is in general similar in shape to the lower oven member, havinga to 67 and a downwardly and outwardlyarlng wall 68, at the lower edge of which is an annular downwardly extending flange 69, having a beveled edge 70, forming a trimmer for the dough. The ,top 67 has at its periphery lan upwardly :extending flange 71. By adjusting the sleeve 62 it will be seen that the upper oven member may be los recense adjusted to fit in its exact position above the lower oven member, whereby the parts may be adjusted in spite of any slight variations in size, which may occur in making the parts in the shop.

ln the space within the flange 71 is mounted a burner 72 similar to the burner 54 which is fed by aftlexible tube 7 8 which communicates with the fuel supply tube 56.

' lt will be obvious that by simply not tightening the nut 64, the coactingv inclined walls 48 and 68 will cause the oven members to automatically center when moved t0- gether.

Provision has been made for raising and lowering the upper oven members at proper times. Mounted in suitable bearings in the `flanges 15 and 48*1 and extending radially outtherefrom is a plurality of rotatable.

wardly shafts 74. At their outer ends shafts 74 are mounted on bearings 75 on the castings 44. Fixed to the outer ends of shafts 74 are laterally extendingr arms 76. ljivoted to the outer end of each arm 76 is a link 77. 'lhe upper end of each link 77 is pivoted to one of the brackets 59.

The parts just described are so arranged that when a shaft 74 is rotated, the upper oven member connected therewith will be raised or lowered, depending upon the direction of rotation of the shaft 7 4.

Fixed on the inner end of each shaft 74 is an arm 7 8, on one end of which` is a rollerv 79, adapted to engage and co-act with the cam 19 hereinbefore referred to. rThe parts are so arranged that when each' shaft 24 reaches a certain position in its movement around the upright shaft l1, the roller 79 will engage the cam-19 and thereupon raise the upper oven member. The oven member will be held in its raised position during a comparatively short part of the travel of the oven around the upright 1l, and will then drop to its lower position above vthe lower ove member.

0n the inner end of each shaft 49a is a mutilated gear 80, having opposite tlat sides 81 and 82 and on one side teeth 83. yll`he teeth 21 and the notch 22 hereinbefore described and 'the mutilated gears 80 are so arranged with dat side 82 normally slides along the lower edge ot the `flange 20, whereby the lower oven member is held in its normal horizontal position. J ust after the roller 79 strikes the cam 19 for raising the the mutilated gear reaches the teeth 21 which project downwardly below the llange 20 and engage the teeth 83 and thereby impart preterably a little over one-'fourth of a revolution to the shaft 49, thereby tilting the lower oven member so that the baked crust thereon will slide od on to -a table or other receiving j means. A

lt is obvious that the parts can be so made relation to each other thaty the upper oven member,I I

meshes with the beveled gear 98.

as to impartv any degree ottilting movement to the lower oven member which may be desired.

llVhen the oven has distance, the dat side 81 ot mutilated gear 8O reaches and engages the lower edge of the iange 2O and slides along the same, holding the oven in its tilted position, until the notch 22 is reached, whereupon the weight of the lower oven member and the bell crank or off setmounting of the oven, with relation to its operating shaft 49, will cause the oven to drop to its position shown in Fig. 2, and as the travel of the ovens around the upright 11, continues, the portion 82 of the mutilated gear will again travel on the lower edge of the flange 20. We preferv ably provide a gas generator at 26 for supplying a gas fuelto the tube 56.

After the oven has returned to its normal a5 position just mentioned, the unbaked dough form is deposited thereon by a mechanism which will be hereinafterl described, and immediately after such dough has been deposited on the oven, the roller 79 passes the cam 19 and the upper oven member is lowered.

For cutting and feeding the dough blanks to the ovens the following mechanism has been provided: i

Suitably located is a supporting stand 84 having a hollow upwardly extending standard 85. rEhe hollow standard 85 is provided at its upper end with an upwardly extending sleeve 86.` Mounted in the sleeve 86 and the supporting stand 84 is an upright shaft 87, the lower portion of which at 87a is'v slightly reduced in size. The shaft 87 is so mounted that it may be permitted to have slight vertical sliding movement.' Fixed on. the lower end ot the shaft 87 is a collar or been tilted a certain the like 88 on which are opposite laterally extending arms 89, mounted on which are rollers 90. The rollers 90 travel on'a camshaped track 91 having at certain intervals the notches 92.

Mounted on the shaft 87 to permit slidable movement thereon but non-rotatable with relation thereto at the lower end of the sleeve 86 is a gear 93. The gear 98 is held by the brackets 94 'from sliding downwardly. rlhe shaft 87 is rotated .at proper speed with relation to the movements of the ovens by means of a shaft 95y mounted in bearings on the supporting stand l()a and the hollow standard 85, and has on its ends the beveled gears 96 and 97. The' beveled gear 97 The beveled gear 96 meshes with the beveled gear 98 formed on' the lower portion of the sleeve 12.

@n the sleeve 86 above the standard 85 is a laterally extending arm 99. Slidably mounted in the outer end of the arm 99 is an upright shaft 1GO, whichsupports'at its upper end a table 101. ln the upper portion of the outer end of the arm 99 is an enlarged la() llt? ina I opening 102. Mountedon the shaft 100 within the opening102 is a collar 103. On the shaft 100 in the opening 102 between the bottom thereof and the collar 103 is a coil spring 104.

The lower end of the shaft 100 is screw threaded. and on said lower end is mounted a hand wheel 105 or the like, whereby the tension-on the spring 104 may be regulated.

It will be seen that a downward blow onl the table 101 is taken up by the spring 104.

Mounted on the sleeve 86 above the arm 99 is a hub 106, having a laterally extending flange 107, at the outer edge of which is an upwardly extending flange 108 forming a cam surface for a purpose hereinafter referred to.

Fixed on the upper end ofthe shaft 87 vabove the sleeve 86 is a web having a plural ity of radially extending hollow arms 109, a downwardly extending socket 110, receiving the shaft 87 and an upwardly extending tube 111, which communicates with' al of the tubular arms 109 and receives the air conducting tube 112 by means of a tight joint whereby the tube 111 may be permitted to rotate with relation to the tube 112. Mounted in the outer end of each tubular arm 109 is a radially extending pipe 113 carrying at its outer enda horizontal disk 114 having at its periphery a downwardly extending sharpl edged flange 115 forming a dough cutting device. Mounted within the ange 115 and slightlyv spaced from the body of the disk 114 is a comparatively thin plate 116 having a plurality of openings Y 117 extending through it. Ihe space'above the plate 116 communicates by means of the passage 118with the pipe 113.

Mounted in each tubular arm 109 isV a valve 119 having a downwardly extending stem 120." Each valve 119 has" a horizontal passage 121 extending through it and also has a by-pass 122.- In one position of the rotation of the valve 119 the passage 121 registers with the opening in the tubular arm 109. In other positions of the valve 119 the passage 121 is closed and in one of said other positions the lower end of thevby-pass 122 communicates with that portion of the opening in the tubular arm 109 which is in direct communication with pipe 113. The upper end vof the by-pass 122 leads'to the open air.,

Fixed'tothe stem 120 and to the tubular -arm`109 is a coil spring 123 whereby the valve 119. is normally heldin position with the passage 121 closed and with the lowerend of the by-pass 122 in communication with the pipe 113.' l

Fixed on the lower end of the stem 120 isa laterally extending armv 124 on the outerend of whichy is a roller 125 adapted to engage and co-act with the cam shaped fiange 108. The air conducting tube 112 is the shaft 87 rotates, the rollers 90 will reach l the notches 92 in the cam shaped track 91,

whereupon the shaft 87 and the web at the upper hand thereof will suddenly drop, permitting the dough cutting edge of the flange 115 to engage the dough and to cut out the blank thereof of proper size for the ovens.

At the same time the roller 125 connected with the valve 119 of the dough cutting device which is above the table will engage the cam flange 108, thereby opening the valve 119, whereby a ypartial vacuum iscreated in the pipe 113 and the passage 118 and the dough blank is pressed against the plate 116. Thisoperation is performed by each of the dough cutting and carrying devices during the rotation of the shaft 87.

-When the first dough carrying device which has picked up a dough blank reaches a certain position in its rotation, one of the lower oven members has'reached a position directly below the dough carrying device. At that instant the. proper roller 125 leaves the cam 108 and the valve 119 is opened,

whereupon air is permitted to pass through the by-pass 122 into pipe 113 and the passage 118 and the dough blank drops on to the lower oven member.

When the oven having the dough blank has traveled a little farther the proper roller 79 leaves the cam 19 and the upper oven memberv .is lowered to position over the dough blank. The edge 70 trims off the edge of the dough blank if that is necessary.

In this connection attention is called to the fact that the inner surface of the flange 69 is beveled at 70, and when the upper oven member is lowered over the lower oven member, the beveled edge 70 slides downwardlyl adjacent to the edge of the shoulder 48b with a shearing motion, as illustrated in Fig. 6,

whereby'the dough blank is accurately and uniformly trimmed.

As the rotation ofthe ovens around their common center continues the dough blank is baked into a crust and the upper oven member is raised and the lower oven member tilted to discharge the baked crust.

It will be noted that the gearing device for connecting the oven and the dough carrying and depositing means are so arranged that the ovens rotate in one direction around the support 11, while the dough carrying means rotate in the opposite direction around their common center. lt thus follows that when the members 14 are above the oven members, the dough carrying means and the dough receiving member of the ovens are moving in the same general direction, so that any centrifugal movement of the pastry when it is dropped will tend to carry said pastry above the oven and drop the pastry in proper position on the lower oven member. lt is quite difficult in a machine of this kind, where the oven and pastry carrying means are both carrying and droppingthe pastry blank to drop it accurately on the oven, and the construction just explained greatly facilitates the proper deposit of a pastry blank on the lower oven member.

The advantages of a machine of this kind can be largely seen from the foregoing description. rl`he dough is handled automatically in cutting out a blank and picking up and carrying the blank t0 the oven for discharging the baked crust. V/'e pret"-- erably discharge the baked crust upon the table on oiled paper and another piece of oiled paper is immediately placed over the baked crust when it is discharged from the oven so that the crust is never touched with the hands.

,T he ovens andv the cutting devices may be made for making crusts of different kinds, and it will be noted that the ovens are so made as to shape the flat dough blank into the shape of a pie crust or the like, as may be desired. We consider it a considerable advantage to arrange the ovens so as to bake the crusts in.inverted positions for the reason among others, that it is then easier to discharge the baked crusts. The machine is built in a compact unit.

lt will of course be understood that numerous changes may be made in the construction and arrangement of the parts of the machine. Other power may be employed for operating the machine where electricity is not easily or cheaply available.` Suitable material is used for making the various parts, the ovens being built of aluminum preferably.

lt is my intention to cover by my present application and the patent to be issued thereon any such modification or structure as may be included within the reasonable scope of my claims.

l claim as my invention: l

i. ln a pastry baking machine, the combination of a rotary supporting member, a plurality of arms radially extending therefrom, an oven carried by each of said arms, a second supporting member, a plurality of arms radially mounted thereon, a dough table` the arms on said second supporting member being adapted to' travel from p'osil tion above said dough table to position above the path of travel of 'said ovens, means mounted on the arms of said second supporting member for cutting and holding dough, means for imparting reciprocating motion to said second supporting` member, and means for imparting rotation to the first and second supporting members, so arranged that when the second supporting member is lowered, during its reciprocating movement, one or" the dough cutting and receiving devices is above said dough table and another of the dough cutting and receiving` means is above one of said ovens.

2. In a pastry baking machine the combination ofa rotary supporting member, a plurality of arms radially extending therefrom, an oven carried by each of said arms` a second supporting member, a. plurality of arms radially mounted thereon, a dough table.,y the arms on said second supporting member being adapted to travel from position above said dough table to position above the path of travel of said ovens, means for cutting and holding dough mounted on the arms of said second supporting member., means for imparting reciprocating motion to said second supporting member, means for imparting rotation to the irst and second supporting members, so arranged that when the second supporting member is lowered, during its reciprocating movement, one of the dough cutting and receiving devices is above said dough table and another of the dough cutting and receiving means is above one ot said ovens, and means whereby suction is created in the dough cutting and receiving means above .the table and is released in the dough cutting and receiving means above the oven when the parts are in the position last above described.

3. In a pastry baking machine` the combination of an oven device, with a plurality of arms mounted for rotation and for vertical reciprocation, dough cutting and carrying devices mounted on said arms, a dough table. the parts being'so arranged that when said arms are moved downwardly, one of the arms is above the table Jfor cutting and receiving thedough blank, and another of said arms is above a receiving por tion of said oven device for depositing another blank.

4t. In a pastry baking machine, the combination of an oven device, with a plurality of arms mounted for rotation and for vertical reciprocation, dough cutting and carry.- ing devices mounted on said arms; a dough table, theparts being so arranged that when.

said arms are moved downwardly', one of the arms is above the table for cutting and receiving the dough blank,v and another of said arms is above a receiving portion of said oven device for depositing' another blank, and means whereby here the parte are in the last described position, suction is created in the dough receiving mea-ns above the table and is released in the dough receiving device above the oven.

5. In a pastry baking machine, a support, a plurality of lower oven members mounted thereonl adapted to rotate around said support, a vertically reciprocable oven member above each lower oven member, a plurality' of movable dough carrying means, means for moving said oven member around said support and for moving said dough carrying means whereby in one position of the movement of each lower oven member it is below one of the dough carrying means, means whereby when each lower oven member moves to the position last described its coacting upper oven member is moved upwardly to permit one of said dough carrying means to pass between the upper and lower oven members, and means for reciprocating said dough carrying means for lowering each of said means when it is immediately above one of said lower ovenl members.

6. In a pastry baking machine, the combination of a supporting member, av'plurality of radial arms thereon, a plurality of two-part ovens mounted on said arms, each comprising a lower and an upper oven member, with a dough table and a second supporting member, a plurality of arms radially mounted on said second supporting member, dough cutting and receiving devices mounted on the respective last named arms, means for imparting rotation to said first arms, and for imparting rotation to said second described arms, means for vertically reciprocating each upper oven member at one position in its rotation, the parts being so arranged that one of said dough cutting and receiving means moves to position above one of the lower oven members at the time when the adjacent upper oven member is in its raised position.

7. In a pastry baking machine, the combina-tion of a supporting member, a plurality of radial arms thereon, a plurality of two-part ovens mounted on said arms, each comprising a lower and an upper oven member, with a second supporting member, a plurality of arms radially mounted on said second supporting member, dough cutting and receiving devices mounted on the respective last named arms, means for imparting rotation to said Vfirst arms, and for imparting rotation to said second described arms, means for vertically reciprocating each upper oven member at one position in its rotation, the parts being so arranged that one of said dough cutting and receiving means moves to position above one ofthe lower oven members at the time when the adjacent upper ovenv member is in its raised position, a dough table adapted to be beneath the respective dough cutting and receiving devices in one position of their movement, means for reciprocating said dough cutting and receiving devices when'above said table for cutting dough blanks, means for creating a partial vacuum in said dough cutting and receiving devices when such blank is formed, and for breaking such vacuum when the dough cutting and receiving devices are above one of said ovens.

8. In a pastry baking machine, a pair of oven members, one of said members being capable of movement away from and' toward the second member, one of said members being provided with a shoulder and the other member having a beveled edge adapted to coact with said shoulder with a shearing movement for trimming pastry, when the oven members are moved together.

9. In a pastry baking machine, a support, an oven mounted to rotate around said support,l a second support, pastry carrying means thereon adapted to rotate around` said second support in a direction opposite that of the rotation of said oven, ythe parts being so arranged that in one of its positions the pastry carrying means is above the oven, and means for holding pastry on said `pastry carrying mea-ns, said means being adapted to discharge said' pastry when said pastry carrying means is in its last ment-ioned position.

10. In a device of the class described, the combination of a support, a movable oven member thereon, a second support, a member rotatably mounted onsaid second support, having an air passage therein, a dough cutting and carrying device .on said last member, having an air passage communicating with said first air passage, a valve for controlling the passage of air through said first air passage, provided with a stem, l an arm on said stem, means tending to yieldingly hold said valve in one position of its movement, and a cam for operating said arm for moving said valve to another posi' tion of its movement during part of the rotary movement of the member having the valve.

11. In a pastry baking machine, an upright support, a radially extending arm adapted to move around said support, a shaft rotatably mounted' on said arm having a crank at its outer end, an oven member supported on said crank, means for moving said arm around said support, means for imparting limited rotation to said shaft at certain positions in the rotation of said arm for tilting said oven, an upper oven member mounted above said' lower oven member capable of vertical reciprocation.

12. In a pastry baking machine, an upmomes a crank at itsouter end, an oven member supported on said crank, means for moving said arm around said support, means for imparting limited rotation to said shaft at certain positions in the rotation of said arm, for tilting said oven, an upright guide de` vice on said arm, an upper oven member slidably supported thereon, a second shaft operatively connected with said upper oven i causing each of said dough carrylng means member, and means for imparting rotation i to said second shaft in certain positions of the rotation of said arm, whereby said upper oven member is vertically reciprocated.

13. In a pastry baking machine, a support, a plurality of arms radially mounted thereon and adapted to rotate around said support, ovens on said arms, a second support, arms mounted on said second support and adapted to rotate around said second' support, dough carrying means on the arms on said second support, arranged in oneposition of each of saidsecond described arms to be above one of said ovens, gearing devices tor operatively connecting said first described arms with said second described arms, for causing them to rotate at definitely relative speeds, a dough table, and means for causing each of said dough carrying means to become operative when it is above said dough table, and to become inoperative when it is above one of said ovens.-

14. Ina pastry baking machine, a support, a plurality of arms radially mounted thereon and adapted to rotate around'said support, ovensv on said arms, a second support, arms mounted on said second support and adapted to rotate around said second support, dough carrying means on the arms on said second support, arranged in one position of each of said second described arms to be above one of said ovens, gearing devices for operatively connecting said first described' arms with said second described arms, for causing them torotate at definitely relative speeds, a dough table, means for to become operative when it is above said dough table, and to become inoperative when it is above one of said ovens, a burner mounted on each oven, and' means for tilting each oven during its rotary movement around said first support just before it reaches position for receiving dough.

15. In a device of the class described, a pair of movable oven members, one of said members being also movable from and toward the other, means for cutting a dough blank, means for depositing the dough blank on one of said oven members, means for moving the other of said oven members to position for coacting with the oven vmember on which the dough blank has been de posited, said oven members having coacting members whereby any surplus dough on the `blank is trimmed off with a shearing movement when the oven members are moved together.

Des Moines, Iowa, February 28, 1916.

' LEALAND C. WILLCOX. Witnesses:

A. SHERMAN, J. Manna. 

